Hi, I have had a canker sore in one area of my mouth, near the side for two weeks now, and when it healed a cut developed, but rather on the side of the mouth like angular cheillitis, it is on the lower lip near the side, and it is a very wide cut. Several other small bumps have just popped up too, in a more spread out fashion on my lower lips (it may be because of my new braces, which i got 2 days ago; the small bumps started only a day ago. The cut is wide and areas near it are turning white. Please help, thanks!